GRE 



271 



GRE 



broken by the rotten branches which 

 are sent down during high winds. 



"Another most desirable considera- 

 tion is, to make arrangements for a 

 constant supply of rain-water. This is 

 very easily done when the house is 

 building. Gutters are wanted to carry 

 the wet off the roof; and, in so doing, 

 letit be brought into a tank in the house, 

 and used for watering the plants. Slate- 

 tanks may be used for this purpose, or ; 

 they may be built of brick and cement- ; 

 ed over on the inside. This will be ' 

 economy in the end ; and the water 

 collected in this way is much to be \ 

 preferred to many kinds obtained from 

 springs. I 



" A drain should be made to enable 

 the tank to be emptied at pleasure, and 

 into which the water used in washing 

 out the house can be swept, without 

 running into the tank." — Gard. Chron. 



The following is the plan of a green- 

 house erected at Yester, the seat of the 

 Marquis of Tweedale, and which an- 

 swers perfectly. 



" In ordinary severe weather, while 

 the thermometer, in the open air during 

 night, ranges between 20^ and 30^, no 

 difficulty is found in keeping the tem- 

 perature to any point required between 

 50° and 80'-', which is quite sufficient. 

 The stove is heated with coke ; and 

 during a period while the thermometer 

 ranged between 60^ and 76^, the cost 

 did not exceed 2s. Qd. per month. The 

 fuel consumed during the time was ten 

 bushels. We do not know what is the 

 principle of the stove, but it resembles 

 an Arnott, and stands within the house, 

 which is twenty-five feet long, twelve 

 feet broad, and thirteen feet high. 



" a a, back wall ; b b, mouths of cold 

 air stove, d ; e f, a f^w descending steps 

 by which it is supplied from the outside ' 

 with fuel, through an opening in the 

 wall, as shown in the plan. On the 

 same level there is a place, /, for con- 

 taining coke, as represented by the 

 dotted lines; g- g is a brick casing. 



Fig. 75. 



formed in lengths of two feet each, and 

 neatly joined together; they are open 

 at top, and have movable covers. In- 

 to this casing the heated air from the 

 stove is first received, and afterwards 

 distributed at pleasure. In addition to 

 the heat given oft' in this way, the brick 

 casing, from retaining the hot air, toge- 

 ther with the flue-pipe passing through 

 it, becomes so hot as to give off a large 

 quantity in a radiating form. 



"In the figure, two of the flue covers 

 are removed to show the surface of the 

 iron water-troughs, fitted on the flue- 

 pipe, and resting on the bottom of the 

 brick-casing, better seen in the sectional 

 view. The troughs are only filled with 

 the healed air when it is wanted in a 

 humid condition ; in other cases the 

 humidity from the cistern A, which sup- 

 plies water for the ordinary purposes of 

 the house, will be sufficient; i and j 

 are wood wedges inserted on one side 

 of the covers to raise them, more or 

 less, in proportion to the quantity of 

 heat required : k is the termination of 

 the flue-pipe, w liere it ascends, crossing 

 the house above the door, and entering 

 the back wall into the chimney. When 

 the house is to be heated, it is only ne- 

 cessary to light the fire in the stove d, 

 and open one of the cold air-drains 6 c, 

 as in the present instance the internal 

 one, b, is open. The arrows represent 

 the cold air flowing towards the stove, 

 where it enters below, and after travers- 

 ing a numerous formation of winding 

 channels in a heated state, discharges 

 itself into the brick-casing, g g, above 

 the flue-pipe, from which it escapes as 

 heretofore mentioned. 



" When the cold air is taken from 

 the external drain, c, the internal one, 

 b, is closed ; a regulation, however, 

 which is entirely at the discretion of 

 the superintendent of the house : r, 

 the regulator in the ash-pit of the sjove, 

 the handle of which is turned so as to 

 admit a greater or less quantity of air, 

 bv which the combustion of fuel in the 

 stove is regulated: s s and m m, venti- 

 lating grates ; ri n, rods of iron sus- 

 pended to the frames of the top win- 

 dows to open and shut them ; g, a sys- 

 tem of small rods for conveying the 

 drip from the inside of the roof to the 

 cistern. A; j>, cover of stove-pit: it is 

 hinged, and readily thrown back when 

 admission to the stove is wanted. 



" For ordinary-sized plant or fruit- 



